You know what they say: you never get a second chance to make a first impression. These days it's most likely that impression will be online. In this piece, we consider the top five mistakes businesses make online that leave a bad taste in customers' mouths.

Twitter IPO Announcement to Be Made Official Soon

It's time for another social media IPO. Twitter is expected to makes it S-1 filing public this week. Valued at a reported $15 billion, Twitter filed with the SEC quietly in July and did not provide a timeline. Some worried that a government shutdown could delay the IPO, but according to Quartz - which originally reported the story - the SEC confirmed that it could stay open for weeks in the event of a shutdown.

Quartz reported that a source close to the plan says that Twitter plans to makes its public offering before Thanksgiving. It's original S-1 filing was done confidentially in July, and then tweeted about on September 12, but the filing must be made public this week.